Video: Watch time-lapse construction of tallest wind turbine in U.S.

File this under “Cool.”

MidAmerican Energy has successfully constructed the tallest land-based wind turbine in the U.S. At an astounding 557 feet the turbine is taller than the Washington Monument. According to the Des Moines Register it took about 30 weeks of construction and was achieved, in part, by using concrete instead of steel.